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      1 ; RUN: llc -march=hexagon -O2 < %s | FileCheck %s
      2 ; CHECK-NOT: sxth
      3 
      4 target triple = "hexagon"
      5 
      6 @g0 = common global i32 0, align 4
      7 
      8 define i32 @f0(i32 %a0, i32 %a1) {
      9 b0:
     10   %v0 = tail call i32 @llvm.hexagon.A2.addh.l16.sat.ll(i32 %a0, i32 %a1)
     11   %v1 = tail call i32 @llvm.hexagon.A2.addh.l16.sat.ll(i32 %a1, i32 %a0)
     12   %v2 = shl i32 %v0, 16
     13   %v3 = ashr exact i32 %v2, 16
     14   %v4 = shl i32 %v1, 16
     15   %v5 = ashr exact i32 %v4, 16
     16   %v6 = tail call i32 @llvm.hexagon.A2.addh.l16.sat.ll(i32 %v0, i32 %v1)
     17   %v7 = shl i32 %v6, 16
     18   %v8 = ashr exact i32 %v7, 16
     19   %v9 = load i32, i32* @g0, align 4
     20   %v10 = icmp ne i32 %v9, %v6
     21   %v11 = zext i1 %v10 to i32
     22   ret i32 %v11
     23 }
     24 
     25 ; Function Attrs: nounwind readnone
     26 declare i32 @llvm.hexagon.A2.addh.l16.sat.ll(i32, i32) #0
     27 
     28 attributes #0 = { nounwind readnone }
     29